:root {
  --bg: #ffffff;
  --ink: #111111;
  --muted: #444444;
  --line: #dddddd;
  --code-bg: #f6f6f6;
  --max-width: 780px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.site-header nav a {
  font-size: 0.95rem;
  text-decoration: none;
}

.site-header nav a:hover {
  text-decoration: underline;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 20px 80px;
}

section {
  margin-bottom: 48px;
}

.hero {
  margin-bottom: 56px;
}

h1,
h2,
h3 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  font-weight: 700;
}

h1 {
  font-size: 2.4rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  margin-top: 0;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.4em;
  margin-bottom: 0.3em;
}

h3 a {
  text-decoration: none;
}

h3 a:hover {
  text-decoration: underline;
}

p {
  margin: 0 0 1em;
  max-width: 68ch;
}

.tagline {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 1em;
}

ul {
  margin: 0 0 1.5em;
  padding-left: 1.5em;
}

li {
  margin-bottom: 0.5em;
}

li::marker {
  color: var(--muted);
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 48px 0;
}

code {
  font-family:
    "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    Menlo,
    Courier,
    monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

pre {
  background: linear-gradient(135deg, #0f172a 0%, #111827 100%);
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
  margin: 0 0 1.5em;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.14);
}

pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  font-size: 0.85rem;
  line-height: 1.55;
  color: #e2e8f0;
}

.token-keyword {
  color: #7dd3fc;
}

.token-string {
  color: #f9a8d4;
}

.token-comment {
  color: #64748b;
  font-style: italic;
}

.token-function {
  color: #fde68a;
}

.token-tag {
  color: #86efac;
}

.token-attr {
  color: #c4b5fd;
}

.token-number {
  color: #fb923c;
}

details {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 16px;
  background: var(--bg);
}

summary {
  cursor: pointer;
  font-weight: 600;
}

details pre {
  margin-top: 14px;
  margin-bottom: 0;
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 1.9rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  main {
    padding-top: 36px;
    padding-bottom: 60px;
  }

  .site-header {
    padding-top: 18px;
    padding-bottom: 16px;
  }

  pre {
    padding: 12px;
  }
}